摘要
CO2气藏由于其物理、化学性质的特殊性,CO2气勘探与烃类气既有相同又有区别,综合应用多种资料和多种技术方法是识别CO2气(层)藏的有效手段。利用区域地质分析、地球物理和地球化学勘探方法综合评价非烃气的分布,提出钻探目标,通过非烃色谱测量法和红外线CO2气体浓度测量法实现CO2气层钻井现场动态检测,利用气体色谱检测相关录井参数资料、核测井密度中子孔隙度差值综合解释CO2气层,有效地识别CO2气。主要介绍CO2气藏综合勘探技术的关键的新技术方法,如地球化学方法、录井和测井综合识别的关键技术方法等。
In view of the peculiar physical and chemical properties of CO2 gas accumulation, the author holds that only by integrated application of various data and techniques can CO2 accumulation be effectively recognized. Regional geological analysis and geophysical - geochemical exploration methods should be utilized in an integrated way to evaluate the distribution of non-hydrocarbon gas and then locate objectives for drilling. Non-hydrocarbon chromatographic measurement and infrared CO2 concentration measurement ought to be performed to realize in-situ drilling dynamic detection of the CO2 layer. Gas chromatography is used to test related log parameter data and neutron porosity differential values of nuclear logging density so as to make an integrated interpretation of the CO2 gas layer and recognize CO2 gas effectively. New key techniques for integrated exploration of CO2 , such as geochemical method and log, are discussed in detail in this paper.
出处
《物探与化探》
CAS
CSCD
2008年第3期283-287,共5页
Geophysical and Geochemical Exploration
关键词
CO2气藏
地球化学
录井方法
核测井方法
综合识别技术
CO2 gas accumulation
geochemistry
log method
nuclear logging method
integrated recognition technique
